User Manual

Application Sheet VAV081
Supply and extract VAV with analog VAV controller, heating and
cooling coil and hot water radiator on triac output
DXR2..18-
102A
1 / 8
Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2019-02-21
A6V10662238_en--_c_--_01
∂ Supply & extract air volume control with compact VAV controller on triac output
∂ Room temperature control
∂ Air quality control
∂ Heating with LTHW radiator on triac output
∂ Downdraft compensation
∂ Room temperature and rapid ventilation operation via KNX PL-Link room operator unit with
temperature, air quality & relative humidity measurement
Plant diagram
DXR2… Room automation station R1 Room operator unit with
B1 Extract air temperature sensor temperature sensor
B3 Supply air temperature sensor YC Cooling coil valve
D1 Window contact YE Extract air control
D2 Presence detector YH Heating coil valve
R Room YR Radiator valve
YS Supply air control
Function diagrams Heating and cooling valve Air flow
SpC Effective cooling setpoint
VavSuAirFlMinC
Min. volume, cooling
SpH Effective heating setpoint
VavSuAirFlMinH
Min. volume, heating
TR Room temperature Y Output signal
V Volume flow rate YC Cooling valve
VavSuAflMinVent
Min. air flow ventilation YH Heating valve
VavSuAirFlMaxC
Max. volume, cooling YR Radiator valve
VavSuAirFlMaxH
Max. volume, heating